Vanadium

• the atomic number of vanadium is 23
• atomic mass 50,94
• the group nummber is 5
• the period number is 4
• vanaduim is a metal
• vanadium is a grayish and its silvery

vanadium was discovered twice, the first time by andres manvel del rio in mexico city in the year 1803, the second time by nils gabriel sefstrom in the year 1831 in sweeden.
They both found out that vandium was in brown lead.

• the boiling point of vanadium is 3380.0°c
• the melting point of vanadium is 1809.0°c
• the number of electrons/protons is 23
• the number of neutrons is 28
• vanadium is a solid
• the powder is highly flammable
• the density @ 293k:5.8 g/cm3

• Reaction of vanadium with air

  
  Vanadium reacts with lots of oxygen, when heating to form vanadium oxide . When prepared in this way, vanadium oxide is sometimes mixed by other vanadium oxides.

• Reaction of vanadium with water

  
  The surface of vanadium metal is protected by an oxide layer and does not reacts with water under normal conditions.
  
  

  Reaction of vanadium with the halogens

  
  Vanadium reacts with fluorine, upon warming to form vanadium fluoride. The other vanadium pentahalides are not known.
  
  

  Reaction of vanadium with acids

  
  

  Reaction of vanadium with bases

  
  Vanadium metal is resistant to attack by molten alkali.

info from: www.webelements.com www.espimetals.com www.chemicalelememts.com www.chemicool.com